The thesis simulates the problem of network connectivity that occurs due to the dynamic nature of a network during flight. Nine nodes are provided with initial positions and are flown based on the path provided by leader-follower control algorithm using the server-client model. The application layer provides a point to point connection between the server and client and by using socket programming in the transport layer, a server and clients are established. Each node performs a neighbor discovery to discover its neighbors in the data link layer and physical layer performs the CSMA/CA using RTS/CTS. Finally, multi hop routing is achieved in network layer. Each client connects with server at dedicated interval to share each other location and then moves to next location. This process is continued over a period of several iterations until the relative distance is achieved. The constraints and limitations of the technology are network connectivity is lack of flexibility for random location of nodes, links established with a distant node having single neighbor is unstable. Performance of a system decreases with increase in number of nodes.

This qualitative study sheds light on the framing of the sexual abuse of the Boko Haram's female captives sent to the internally displaced persons (IDP) camps and analyzes emotional themes from tweets focusing on the release of the Boko Haram's female victims, the Chibok girls. Six articles were chosen from BBC (a British news source), Punch (a Nigerian news source), and the New York Times (an American news source) to reveal the frames. In addition, 118 tweets were examined to address emotional tweets under #ourgirlsareback, #82chibokgirls, #chibokgirls82, and #chibokgirls. The findings discovered the presence of the human interest frame, conflict frame, responsibility frame, and a stereotype in the articles. The tweets showed positive common themes- joy, gratitude, and hope. Also, the tweets included conspiracy theories.

Using ethnographic research methods, I worked with the International Game Developers Association (IGDA) to conduct an exploratory study about developer perspectives on video game preservation. I conducted in-depth interviews with independent developers in the Dallas-Fort Worth region, a hub for Texas game development. These interviews explored developers' knowledge and awareness of game preservation as a topic of concern, archival culture and practices in the industry, and the IGDA's potential role in addressing issues related to preservation work. This research contributes to a growing body of literature on game preservation, urgently needed as many gaming technologies face obsolescence in the near future. I use Ellen Cushman's concept of "perseverance" to examine the difference between simply preserving video games for the future, and the perseverance of game development as a professional trade and artistic craft.

Johannes Möller's 2014 composition Shenandoah Fantasy for Two Guitars, is a theme and variations on the American folksong Oh Shenandoah and is the composer's only work dedicated to American music. An informed performance of this work requires biographical information. Since no scholarly work on this composer is currently available, this paper includes Möller's biographical information, compositional background and performance suggestions. This information was acquired through a recorded video interview with the composer that covered his early education as a guitarist and composer, his formal conservatory training, career accomplishments, influences that informed the piece, and suggestions for performance practice. The insight gained through this interview reveals its main influences as the Romantic Fantasy, American Minimalism, Keith Jarret's harmonization of Oh Shenandoah, American country and bluegrass music, and the sounds of American folk instruments. These are the subjects of the body of this paper. In addition to an overview of some scholarly writing on the styles which influence the piece, some solutions are offered at the end of the paper to aid in the performance of difficult passages. The intent of these solutions is to make the piece easier for the left and right hand, without sacrificing those musical elements that represent …

The 10 Etudes for Guitar by Giulio Regondi represent the pinnacle of technical achievement for nineteenth century guitar performance. Dense textures, large stretches, fast scales and arpeggios, and obscure modulations are used in combinations that were unrivalled among his contemporaries. The etudes were not published until the late twentieth century and have not had generations of guitarists solving their challenges and teaching them to younger generations of students. Right-hand fingerings are virtually non-existent in published versions, but a thorough study of period sources yields several strategies; examples from each etude are provided. Modern right-hand scale philosophy, such as playing scales with "a," "m," and "i" in the right-hand are addressed and further example provided to give players several solutions to choose from. Right-hand fingering implies articulation and several interpretations are analyzed for each etude where they exist. Left-hand fingerings are sporadically present in modern editions but are often lacking in the most difficult passages. Stretching techniques from other string instruments can be applied to the guitar and one technique in particular can be applied to the most difficult stretches in Regondi in numerous instances. For some of the most challenging textures several solutions are given. The etudes of Regondi can …

María Grever (1885-1951) overcame racism and gender bias during a pivotal era in American music history to become the first commercially successful Mexican female composer and more specifically, a pioneer of popular music during the first half of the 20th century. Though named the "Madonna of song," her legacy is largely overshadowed by other compositional giants of the era, such as the Gershwin brothers, Cole Porter, and Irving Berlin. Grever's music is sophisticated, heartfelt, and worthy of attention. Her colorful, genuine music adds distinctiveness and variety to recital programs. Grever's songs offer a high level of musical integrity and socio-cultural value. Incorporating her compositions into a singer's vocal repertoire is an excellent way to broaden the scope of styles and languages while maintaining the highest standards of musical study. The following document considers the importance of performing and studying Grever's music by analyzing nine songs representing three compositional periods. I evaluated the songs considering pedagogical benefit, performance value, and significance to her overall oeuvre.

Consumer's opinions and sentiments on products can reflect the performance of products in general or in various aspects. Analyzing these data is becoming feasible, considering the availability of immense data and the power of natural language processing. However, retailers have not taken full advantage of online comments. This work is dedicated to a solution for automatically analyzing and summarizing these valuable data at both product and category levels. In this research, a system was developed to retrieve and analyze extensive data from public online resources. A parallel framework was created to make this system extensible and efficient. In this framework, a star topological network was adopted in which each computing unit was assigned to retrieve a fraction of data and to assess sentiment. Finally, the preprocessed data were collected and summarized by the central machine which generates the final result that can be rendered through a web interface. The system was designed to have sound performance, robustness, manageability, extensibility, and accuracy.

Anthropological research conducted in a local Texas hospital provides data to analyze cultural competency. Increasing health equity is a key aspect of cultural competency literature, hospital, and national goals. Examining the local context allows for the analysis of how one hospital can affect public health in the area by using patient-centered care. Using observational and interview data to create the ideal of the patient journey shows how patient families experience cultural competency. Overall, the patient families felt they experienced culturally competent healthcare, however from the hospital structure perspective there could more goals to attain.

The modern piccolo trumpet is required by professional trumpet players for the performance of solo repertoire, chamber music, orchestra, and wind band. Students in universities around the world study the piccolo trumpet in preparation for professional careers, but relatively few pedagogical tools exist to specifically focus on the nuanced techniques of the instrument such as articulation, range, and sound production. The purpose of this project is to create a pedagogical guide that can serve as a method for students learning the modern piccolo trumpet.

Poor post-school outcomes for young adults with an autism spectrum disorder (ASD) have underscored the need to gain insight into the use of evidence-based practices (EBPs) in the planning and implementation of transition services. EBPs for effective transition planning and implementation have been documented in the literature but do not appear to be fully utilized in practice to achieve desired student outcomes, reflecting a research-to-practice gap. EBPs have the potential to produce positive outcomes at the high school level, if implemented with fidelity. Special education personnel, especially administrators, play a vital and unique role in transition planning. They can either facilitate or hinder the process. This phenomenological study investigated the perceptions of public school administrators regarding the extent of their awareness of EBPs to ensure the successful transition of students with ASD and associated barriers. Semi-structured interviews were conducted with 10 secondary-level public school administrators. Major themes identified through analyzing the qualitative data included (a) a positive vision for students with ASD, (b) characteristics of a good transition program, (c) administrators' roles in the transition process, (d) barriers to EBP implementation, (e) strategies to reduce barriers, and (f) ownership of what administrators can do to remedy the problem. Lastly, the …

Empirical research has shown a relationship between the school principal's leadership ability as an instructional leader and student learning outcomes. It would be reasonable to assume that the school principal benefits greatly from his or her superintendent sharing his or her knowledge and experience. The purpose of this study was to examine the perceptions of a sample of rural West Texas principals and the frequency and extent to which their superintendent provides them effective professional development and advice on a professional level or setting. Furthermore, the study focused on passive-avoidant, transactional, and transformational leadership styles. This was a mixed-method study utilizing 50 quantitative questions and 7 open-ended qualitative questions. Findings indicate that the principals'' perceptions of their superintendent's leadership style were on average, positive. Research supports that the behavior and actions superintendents used were both transformational and transactional forms of leadership and more often than not encouraged growth and positive outcomes among principals. The principals' perceptions regarding the impact of their superintendent's leadership style(s) on their own professional growth was positive, with results indicating that many superintendents would support and encourage professional and personal growth even where resources were limited.

Giovanni Legrenzi was a prolific composer of vocal music and maestro di cappella at the Basilica di San Marco but his vocal works are not often studied as a part of the Venetian lineage with composers such as Willaert, de Rore, Zarlino, Monteverdi, Cavalli, and Vivaldi. Despite his being a prolific composer who had significant influence on the work of other musicians in the traditional canon, references to Legrenzi in standard music publications (Grout, Taruskin, Grove Music Online, etc.) are at best sparse, and largely biographical. This dissertation is one step to correct that pattern by creating a performance edition of Sacri e festivi concenti, Opera nona, one of Legrenzi's significant works near the beginning of his Venetian period. This collection of sacred music was published on 12 June 1667 in Venice though Legrenzi's exact whereabouts at the time remain uncertain. This phase of his career can be defined by his having sought more prestigious and lucrative employment. Having lived and worked in rural Lombardy and Ferrara, he made unsuccessful overtures in places such as Milan, Bologna, Vienna, and Paris. A full score has been produced by transcribing from the part books of the Bologna Museo copy, which will allow …

The Reichsleiter Rosenberg Task Force of 1940, initiated a systematic confiscation of items belonging to Jews throughout Europe. Because of this task force and Hitler's decrees, Jews across Europe were labeled as stateless, and were stripped of ownership and rights to property. Not only did these actions devastate Jews economically, but intellectually and artistically as well. In parts of occupied France, this task force was legitimized by Vichy laws under the label of the Commissariat Générale aux Questions Juives (General Commission for Jewish Issues) and enabled Nazi officials to closely watch Jewish musicians and stop them from performing their music, profiting from anyone else performing it, and to halt any public performance of Jewish compositions. This dissertation exhibits the lost legacy of one such Jewish musician, Józef Szulc. It discusses him as a musician of great importance in the ongoing recovery of Jewish culture, music, and life during World War II. His musical output has historical notoriety, as seen through reviews and performance history. The study of Vichy laws and their effect on Jewish musicians in Paris during the Nazi occupation provides the socio-political context for Szulc's life. It also provides the most plausible reason why his contribution to French …

Employing a textual analysis within an auteur theory framework, this thesis examines Frederick Wiseman's films At Berkeley (2013), National Gallery (2014), and Ex Libris (2017) and the different ways in which they reflect on the theme of time. The National Gallery, University of California at Berkeley, and the New York Public Library all share a fundamental common purpose: the preservation and circulation of "truth" through time. Whether it be artistic, scientific, or historical truth, these institutions act as cultural and historical safe-keepers for future generations. Wiseman explores these themes related to time and truth by juxtaposing oppositional binary motifs such as time/timelessness, progress/repetition, and reality/fiction. These are also Wiseman's most self-reflexive films, acting as a reflection on his past filmmaking career as well as a meditation on the value these films might have for future generations. Finally, Wiseman's reflection on the nature of time through these films are connected to the ideas of French philosopher Henri Bergson.

This dissertation explores both the production of underclass literature and the vibrancy of material between 1868-1935. During an era of rampant materialism, consumer capitalism, unchecked industrialism, and economic inequality in the United States, poor, working class Americans confronted their socioeconomic status by abandoning the linear framework of capitalism that draws only a straight line between market and consumer, and engaging in a more intimate relationship with local, material things – found, won, or inherited – that offered a sense of autonomy, belonging, and success. The physical seizure of property/power facilitated both men and women with the ability to recognize their own empowerment (both as individuals and as a community) and ultimately resist their marginalization by leveling access to opportunity and acquiring or creating personal assets that could be generationally transferred as affirmation of their family's power and control over circumstance. Reading into these personal possessions helps us understand the physical and psychological conflicts present amongst the underclasses as represented in American literature, and these conflicts give rise to new dynamics of belonging as invested in the transformative experience of ownership and exchange. If we can understand these discarded, poor, and foreign things and people as possessing dynamic and vibrant agency, …

Has years of citizen-based nutrient sampling and baseline water quality monitoring efforts only had a "trivial" impact on natural resource management decisions? This thesis will explore this and other findings from a qualitative evaluation of the Rock River Coalition (RRC) citizen-based stream monitoring project in Dane County, Wisconsin, USA. These findings are the culmination of 47 semi-structured interviews with decision-makers from seven client-identified categories and participant observations of board meetings and other watershed groups. Interview questions focused on current strategies of data design and dissemination with the goal of constructing a clearer picture of existing data usage by Dane County decision-makers. In the wider picture of citizen science and community-based research, this case study aims to highlight barriers to data use and potential solutions. The results of this case study were understood through four key frames: (1) Bourdieu's concept of symbolic capital, (2) Barzilai‐Nahon's theory of network gatekeeping, (3) Newman et al.'s framework for leveraging the power of place, and (4) a Foucauldian approach to the production of scientific knowledge. The findings of this study highlight the presence of gatekeeping mechanisms within the scientific field as well as government institutions, problematize the practice of placemaking, assert there is untapped symbolic …

There is currently a great deal of information available to euphonium players who double on trombone, but far less for euphonium players who double on tuba. This dissertation takes information gathered from many top euphonium/tuba doublers, including: Benjamin Pierce, D.M.A., Aaron Tindall, D.M.A., Gail Robertson, D.M.A., Gretchen Renshaw James, D.M.A., Matthew Murchison, D.M.A., Matthew Shipes, D.M.A., Matthew Tropman, D.M.A., and Keith Kile, and presents a synopsis of their thoughts/reflections on tuba doubling. This dissertation is designed to aide euphonium players in the process of learning tuba, enabling them to be as efficient as possible with both their time and money throughout the process. Topics covered include: difficulties unique to the euphonium/tuba double and approaches to overcome them, similarities and differences between euphonium and tuba playing (from the perspective of euphonium/tuba doublers), "reverse" benefits of euphonium/tuba doubling on the primary instrument, literature recommendations for euphonium/tuba doublers, and equipment considerations for euphonium/tuba doublers.

There is a consistent need in many industries, especially oil and gas, to develop coatings which have higher corrosion resistance and better hardness to extend the lifetime of equipment when it is exposed to hostile environments. Electrodeposition has been a favorable method in the synthesis of metal coatings because of its low cost, convenience, ability to work at low temperatures, and ability to control surface morphology and structure. The inclusion of ceramic nanoparticles in metal matrix composites has previously been investigated as a technique to not only increase the corrosion resistance of the native metal but also to improve the hardness and mechanical properties. Cerium oxide nanoparticles were modified through the grafting of organic groups with increasing hydrophobicity for use in nickel coatings on stainless steel to further improve the corrosion properties while maintaining the hardness of the nanocomposite coatings. The process of modifying the cerium oxide nanoparticles involved the use of aryl diazonium salts and resulted in multilayers forming on the surface of the nanoparticles. Praseodymium oxide nanoparticles were also investigated as additives to nickel coatings, since praseodymium oxide has not yet been studied as a possible corrosion protection enhancement in coatings. These coatings were evaluated for composition and …

Corrosion is one of the most expensive failures in industries that used metal components and other construction materials. In fact, corrosion is responsible for hundreds of billions-dollar loss in the US alone each year. In general, corrosion occurs when metal surfaces are exposed to water, oxygen, acids, bases, or salts. Therefore, metal substrates must be protected by using materials that act as barriers to avoid destructive corrosion attack. Aluminum is one of the most common metals used in the industry; and it is used in many places such as refining and petroleum production equipment, pipelines, and fossil fuel power plants. Aluminum is known to have corrosion resistance due to the forming of an oxide layer that can be reformed rapidly if the surface gets damaged. However, in the long-term the oxide layer cannot protect the aluminum surface from corrosion because it is stable only in neutral mediums and it is soluble in acidic and basic environments. Barrier protection is one of the most effective methods that prevent aluminum surfaces from being exposed to corrosive environments. These barriers can be organic or inorganic coatings that can limit the electron transport or the cathodic and the anodic reactions between aluminum alloys and …

Through a series of carefully designed experiments, characterization and some modeling tools, this work is aimed at studying the role of thermal profiles on different microstructural zones and associated properties like strength and corrosion through a variation of weld parameters, thermal boundary conditions and material temper. Two different alloys belonging to the Al-Cu and Al-Cu-Li system in different temper conditions- peak aged (T8) and annealed (O) were used. A 3D-thermal pseudo mechanical (TPM) model is developed for the FSW process using heat transfer module in COMSOL Multiphysics and is based on a heat source wherein the temperature dependent yield shear stress is used for the heat generation. The precipitation and coarsening model is based on the Kampmann and Wagner theoretical framework and accounts for the competition between the various nucleation sites for both metastable and equilibrium precipitates. The model predicts different precipitate mean radius and volume fraction for the various zones in the friction stir welded material. A model for the yield strength is developed which considers contributions from different strengthening mechanisms. The predictions of the each models have been verified against experimental data and literature. At constant advance per rotation, the peak temperature decreases with a decrease in traverse …

Prokofiev had a specific approach to the modernist aesthetic that is worthy of a special study from a new perspective: eclecticism. There are two distinguishable views on his achievement in modern music. One is the Western version, which sees his eclectic approach as not innovative enough in comparison with modern composers such as Stravinsky. The other view is from the traditional Soviet approach, which holds Prokofiev in the highest esteem. These sources largely ignore Prokofiev's Paris and American periods. Such an oversimplification is likely to have reflected political circumstance. Neither the Western view nor the Soviet view provides a satisfying interpretation of Prokofiev's musical style. Therefore, understanding his eclectic approach is important to challenge and redefine our notion of Prokofiev's musical aesthetic. This dissertation examines Prokofiev's eclectic approach in his Violin Concerto in G minor with a combination of historical research and historically informed style analysis. The historical research is mainly based upon current interpretations of Prokofiev's musical style. The two contrasting views (Western and Soviet) on Prokofiev's contributions to modern music are equally lacking in objectivity due to their entrenchment in political rhetoric. Therefore, to have a more precise interpretation of Prokofiev's concerto, historically informed analysis is used to …

Deep reinforcement learning is an area of research that has blossomed tremendously in recent years and has shown remarkable potential in computer games. Real-time strategy game has become an important field of artificial intelligence in game for several years. This paper is about to introduce a kind of algorithm that used to train agents to fight against computer bots. Not only because games are excellent tools to test deep reinforcement learning algorithms for their valuable insight into how well an algorithm can perform in isolated environments without the real-life consequences, but also real-time strategy games are a very complex genre that challenges artificial intelligence agents in both short-term or long-term planning. In this paper, we introduce some history of deep learning and reinforcement learning. Then we combine them with StarCraft. PPO is the algorithm which have some of the benefits of trust region policy optimization (TRPO), but it is much simpler to implement, more general for environment, and have better sample complexity. The StarCraft environment: Blood War Application Programming Interface (BWAPI) is open source to test. The results show that PPO can work well in BWAPI and train units to defeat the opponents. The algorithm presented in the thesis is …

Training autonomous agents that are capable of performing their assigned job without fail is the ultimate goal of deep reinforcement learning. This thesis introduces a dueling Quantile Regression Deep Q-network, where the network learns the state value quantile function and advantage quantile function separately. With this network architecture the agent is able to learn to control simulated robots in the Gazebo simulator. Carefully crafted reward functions and state spaces must be designed for the agent to learn in complex non-stationary environments. When trained for only 100,000 timesteps, the agent is able reach asymptotic performance in environments with moving and stationary obstacles using only the data from the inertial measurement unit, LIDAR, and positional information. Through the use of transfer learning, the agents are also capable of formation control and flocking patterns. The performance of agents with frozen networks is improved through advice giving in Deep Q-networks by use of normalized Q-values and majority voting.

Quiet Flows the River explores the lives of the people living in the coastal area of Bangladesh. Affected by the consequences of climate change, they continue to adapt and struggle each day to survive in their homelands.